I had a local shop do the upholstery and carpet for me. Figured it was a little beyond my abilities. The gel coat kit is great, but the key was getting the circular polisher IMO. There's no way my old orbital polisher would bring the shine out like I've gotten with the circular...

I think I have that same polisher. Just a suggestion, I would use wax and not that liquid sealer in the kit after you use the oxidation remover. That liquid sealer on the circular polisher goes EVERYWHERE!! It makes a mess. If you don't get it off immediately it dries and is difficult to get off. I gets all over the trailer, the floor of the garage, etc. Use something else...trust me.

Do you mind me asking what you paid for the carpet/upholestry and labor?